ChunHee Solar Sound & Light Alarm Outdoor Motion Sensor 129db Siren Sound Alert & 6LEDs Flash Warning Security Alarm System for Villa, Farm, Chicken Coop,Yard, Garden

These motion detector units work great in activating the flashing red lights and the alarm sound. The alarm sounds for 45 seconds which is a long time but you do want it to be effective in keeping rodents, animals and people away. There are five mode settings and when it is on the first mode to deactivate the unit you just press the black button on the back side four times to turn it off. If the unit is still active then you may need to repeat pressing the black button four times again and you do this quickly. You do this quickly to not disturb other campers at a campground. When at a campsite that is close to the road where vehicles may be coming by frequently it does sound on, so I recommend to wait until later in the night to set out around your vehicle and or camper trailer. Where I was staying recently I waited until like 10:00 or later to set the units out. Once again the alarm sounds for 45 seconds so it may seem like it is not going to stop but it will stop sounding. I highly recommend this product.

I ordered a set of these to place in a few hot spot areas to keep the deer out and recently hogs that are tearing stuff up. I've tried to hunt the hogs but they seem to come up in the middle of the night and have run the deer out multiple times. So far I have one out and I set it on the night mode. Plan on setting the other 3 out soon. From what I can tell these should help a bunch and I do plan on buying another set of 4. When they arrive, charge them for a day before putting out. These solar so there after they'll work on they're own. My only bother is I wish they'd make these in a "green" color instead of Red.Winter 2023 update - I got all 4 out again and I will say these work great when set around high traffic areas (Deer and Hogs). What is interesting is the Deer have learned where they are and have sneaked in other little areas to eat.

Stops people trespassing . I had mine out side since 2023 and it's been working great . thru the cold and snow to the heat and rain. hasn't missed a beat .

I kept these up all winter and they still work. I need about 10 more for around the garden and to give as gifts to people I know who also have deer issues. They are loud if you are outside, but if your in the house, they are hard to hear, so I think they would be OK if you live in a place with neighbors close by.Just tonight one went off and I heard it because the door was open. I got up right away and couldn't see anything with the flashlight but eyes glowing out in the woods, many yards from the alarm.Get enough so you can place them 20 feet apart all around the entire garden.They would probably scare the crap out of a burgler.

They work for night time but the day time mode just goes off if the grass moves in wind really annoying

THE INSTRUCTIONS ARE ABSOLUTELY THE WORST. They should post a how-to video on changing settings.I was ready to send all three back because I couldn't turn them on. Then my wife came along and started each one. Big fingers on my hand couldn't get it.They seem to work well. However, they could use two major changes to make these an ideal purchase. 1) A timer adjustment so you can cut the alarm time down to 10-30 seconds. 2) A Volume control so you can adjust the sound level to what you need.I bought these to scare away cats that keep passing through my space, but they are so loud that no one can tolerate it for more than a few seconds, and I will undoubtedly have neighbors annoyed and/or calling the police. 45 seconds is far too long, and whoever decided on that should have tested them and seen that. I'm sure they work great for out in a field somewhere to keep away deer and bears, but 10 seconds would have them running. But by having it preset to 45 seconds of that blaring noise, the only ones being bothered by it after the first few seconds, are any humans who are anywhere near it.I took one apart and pulled the speaker out of the pocket it's glued into and have it sitting loose inside the case. That did it so that the noise should still work for my needs to scare critters away, while not being annoying to humans with good hearing and short tempers. It was a tedious job because the speakers (a round disc right in front) are glued in there fairly well. I'll leave the other two units alone and use them for intruder alerts if SHTF.

Es una alarma para uso en exteriores, solar aunque también es posible alimentarla con AC. Funciona muy bien como una alarma pequeña, no muy sonora para que moleste los vecinos pero si a los intrusos sean estos personas o animales.

These are very loud, can hear from 400' away on breezy day.These are very sensitive to motion, too sensitive. If there is tall grass, small trees, or bushes within sensor range, they will go off. Would be nice to have a sensitivity adjustment. Hence my 3 Star rating for sensitivity.Where I'm located, there is almost always some sort of breeze.